ONIMAI: I’m Now Your Sister! anime announced by Mushoku Tensei TV animator Studio Bind

ONIMAI: I’m Now Your Sister! anime
The ONIMAI: I’m Now Your Sister! release date has not been announced yet. Pic credit: Studio Bind

Nekotofu’s hit manga series ONIMAI: I’m Now Your Sister! is getting a TV anime adaptation. An ONIMAI release date for the anime is yet to be announced.

The genderbending anime is about a boy who wakes up as a girl after his sister’s experiment.

Animation production for the series is handled by Studio Bind. This is Studio Bind’s second major anime production project after Mushoku Tensei: Jobless Reincarnation. Studio Bind has already announced that they’re working on Mushoku Tensei: Jobless Reincarnation Season 2 and Mushoku Tensei Season 3 is reportedly greenlit for production internally.

The ONIMAI manga is currently serialized in Ichijinsha’s Monthly Comic Rex. A promotional video for the anime announcement and the release of the manga’s sixth volume has also been released on Ichijinsha’s Youtube channel.

ONIMAI: I’m now your sister! gets a TV anime adaptation.

The ONIMAI: I’m Now Your Sister! anime is the series directorial debut for director Shingo Fujii. Series composition and character designs are handled by Michiko Yokote and Ryo Imamura respectively.

Kaori Ishihara, who plays Shouta Magatsuchi in Miss Kobayashi’s Dragon Maid, will play the role of Mihari Oyama, and Marika Kouno, who plays Rin Kohana in the 2015 anime series Seiyu’s life!, will play the role of Mahiro Oyama.

ONIMAI anime announcement
ONIMAI: I’m Now Your Sister! to get a TV anime adaptation. Pic credit: ONIMAI anime Twitter

The story of ONIMAI

Kodansha, the English publisher of the series, describes it as:

Mahiro Oyama was just a normal erotic-game-loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out!

ONIMAI: I’m Now Your Sister!
An ONIMAI collaboration cafe at Machi Asobi Cafe is scheduled from April 26 to May 8, 2022. Pic credit: Machi Asobi Cafe website

ONIMAI collaboration cafe is here

To commemorate the release of ONIMAI Volume 6 and the anime adaptation, an ONIMAI collaboration cafe is scheduled to be held from April 26 to May 8 at Machi Asobi Cafe at 5 locations in Japan.


  • Machi Asobi Cafe Tokyo
  • Machi Asobi Cafe Osaka
  • Machi Asobi Cafe Nagoya
  • Machi Asobi Cafe Bizan
  • Machi Asobi Cafe Kitakyushu

You can check out the Machi Asobi website for more information.

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